251502052012 has 12 divisors (see below), whose sum is σ = 440221107760. Its totient is φ = 125724592656.

The previous prime is 251502052007. The next prime is 251502052013. The reversal of 251502052012 is 210250205152.

It is not an unprimeable number, because it can be changed into a prime (251502052013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6586923 + ... + 6624994.

Almost surely, 2^251502052012 is an apocalyptic number.

It is an amenable number.

251502052012 is a deficient number, since it is larger than the sum of its proper divisors (188719055748).

251502052012 is a wasteful number, since it uses less digits than its factorization.

251502052012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13216680 (or 13216678 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 251502052012 its reverse (210250205152), we get a palindrome (461752257164).

The spelling of 251502052012 in words is "two hundred fifty-one billion, five hundred two million, fifty-two thousand, twelve".